Formula: CuSO4
Origin of name: From Greek for copper and azure blue
Crystal system: Orthorhombic
Crystal class: 2/m 2/m 2/m
Twinning:
Unit cell:
Colour: Pale green, sky-blue, yellowish, brownish
Diaphaneity: Transparent to translucent
Luster:
Habit: Crystals tabular, slightly elongated
Hardness: 3.5
Specific gravity: 3.65
Cleavage: None
Tenacity:
Streak:
Synonyms/varieties:
Comments: Hygroscopic; soluble in water
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